Our departmental director came into the office for the first time in around half a year recently. He noticed that we don't always have all the windows wide open all the time (as per Covid guidance) and sent round an email about it. He says he understands that we might be cold (we are!) but we should all just expect the office to be colder now and bring in jumpers and open all the windows. AIBU to think that wearing a jumper is not the same as being in a warm room and that if he wants us to all sit in a place with wide open windows for eight hours a day throughout winter then he needs to be turning the heating up?